Add CC-BY-4.0 license to the AI policy

[IAlibay]

I would like to propose that the AI policy is placed under CC-BY-4.0. It would be useful for downstream projects.

LLM/AI disclosure

No AI was used here.

PR Checklist

• Issue raised/referenced?
• Tests updated/added?
• Documentation updated/added?
• package/CHANGELOG file updated?
• Is your name in package/AUTHORS? (If it is not, add it!)
• LLM/AI disclosure was updated.

Developers Certificate of Origin

I certify that I can submit this code contribution as described in the Developer Certificate of Origin, under the MDAnalysis LICENSE.

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📚 Documentation preview 📚: https://mdanalysis--5232.org.readthedocs.build/en/5232/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.81%. Comparing base (e6c1b44) to head (a7a5a5f).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5232      +/-   ##
===========================================
- Coverage    93.83%   93.81%   -0.03%     
===========================================
  Files          180      180              
  Lines        22475    22475              
  Branches      3190     3190              
===========================================
- Hits         21090    21085       -5     
- Misses         923      926       +3     
- Partials       462      464       +2     

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[orbeckst]

great idea!

[IAlibay]

@RMeli @tylerjereddy @BradyAJohnston - I will need your approvals before I can merge this, since you have all contributed to the text.

[tylerjereddy]

Sounds good.

By the way, similar policy discussions have started for NumPy and SciPy now. I can't really keep up, but the SciPy PR is here: scipy/scipy#24583.

There's a link to the LLVM AI policy there too. I believe the NumPy mailing list discussion was particularly long: https://mail.python.org/archives/list/numpy-discussion@python.org/thread/LAR7P3KQWHWAIKYSHTS2MY7X4HUBVA3L/#XPPHA3EQDIIYOWCIPL3FBOEG335TR4FW

Also, separate discussions about adding agents files to repos to tell LLMs what to do/not do: https://discuss.scientific-python.org/t/agents-md-and-claude-md-addition-to-scipy-repository/2233